Java Software Engineer Core Java Jobs in UK

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eDV Cleared Software Engineer Lead Backend & Cloud

iO Associates is looking for a Software Engineer to join their team in Manchester, Gloucestershire, or London. The ideal candidate will have strong skills in Backend development using Java (Spring Boot, Maven) or Python, alongside experience in DevOps practices including CI/CD pipelines and AWS environments. Thi ...

Lead Backend Engineer – Trading Platforms & Systems

Marks and Spencer is seeking a Software Engineer to join their team in London. You will lead software development, provide technical leadership, and mentor fellow engineers. The position demands a strong engineering background with proven experience in back-end systems, cloud technologies, and agile practices. A ...

Senior Backend Engineer for Scalable Data & AI Systems

A data-driven software company in Greater London is seeking a Backend Software Engineer to lead the architecture and development of scalable backend services. The role involves building robust APIs, collaborating with other engineers, and optimizing performance. Candidates should have 6+ years of experience in b ...

Manufacturing IT/OT Software Engineer — On Site, PLCs & Cloud

A leading technology firm in Darlington, County Durham is looking for a talented Manufacturing IT/OT Software Engineer. The role involves designing, developing, and implementing software solutions for cloud-based systems, alongside project management and collaboration across teams. Candidates should have a Bache ...

Hybrid AI Software Engineer — Manchester, Production AI

Vanguard is seeking an AI Software Engineer in Manchester to design and maintain AI services and platforms for European teams. Ideal candidates should have 3-6 years of software engineering experience, strong programming skills in languages such as Java or Python, and hands-on experience with AI and machine lear ...

Senior Real Time Distributed Cloud Data Engineer

Zeta Global, based in London, is looking for a Senior Software Engineer to provide technical leadership in architecting and developing the Addressability part of the Zeta Marketing Platform. The role includes collaborating with teams to shape the roadmap for a state-of-the-art multichannel marketing solution. Ke ...

Principal Software Engineer SC Eligible | Lead Architect

Appvia in London is seeking a Principal Software Engineer to provide technical leadership in modern software systems. The role involves collaboration with delivery managers and engineers to enhance engineering standards and practices. Candidates should have substantial experience in Domain Driven Design and micr ...

Senior Cloud QA Engineer — Automation & Testing Lead

Tatton Recruitment is seeking a Senior Software Engineer in Test for a temporary contract in Lydgate, UK, initially until March 2027. You will develop and test bespoke cloud-native applications, utilize tools like SonarQube, and implement automation strategies. The role requires strong programming skills in Java ...

Lead AI Engineer Production ML for Workday

Kainos in Derry/Londonderry is looking for a Lead AI Engineer to join their team. In this role, you will bridge the gap between data science and software engineering, focusing on deploying AI and machine learning solutions that enhance Workday products. The ideal candidate has extensive experience in s ...

Senior Real Time Payments Fintech Engineer

Shoptalk is seeking a Senior Software Development Engineer to join their Basildon team. You will design, develop, and maintain software applications, working with cross-functional teams in a fast-paced financial services environment. Ideal candidates have strong backend skills in Java 11+, experience with cloud ...

Hybrid Software Engineer — Automation & Web Tools

WEG Tech, located in Birmingham, is looking for a Software Engineer to develop web-based user tools and support internal automation systems. The successful candidate will work in a hybrid setting, collaborating with a multidisciplinary team to enhance existing software applications. Qualifications include a degr ...

Senior Software Engineer AEM Web Experience (Cloud)

Nuffield Health is seeking a Senior Software Engineer to join their team in City of Westminster, England. This role involves full-stack development of user-facing digital services, particularly focusing on Adobe Experience Manager (AEM). Responsibilities include ensuring software quality, supporting digital solu ...

Senior Ads Analytics Engineer API, Spark & Airflow

Roku is seeking a highly skilled Senior Software Engineer in Cambridge, England, to lead API Development and Big Data pipelines. With a strong emphasis on software and data engineering, the role involves designing, building, and maintaining scalable systems. Candidates should have 8+ years of experience, experti ...

Senior Software Engineer, Ads Analytics & Data Pipelines

Roku, Inc. is looking for a Senior Software Engineer in Manchester, UK, to develop scalable APIs and manage big data solutions. Candidates should have 8+ years in software or data engineering, with skills in Apache Spark, Airflow, and a strong foundation in Java, Python, or Scala. The role requires collaboration ...

Senior Backend Engineer, Guest & Host — Europe

Airbnb in Greater London is seeking a skilled Software Engineer with expertise in backend development, particularly in Java and Kotlin. The role involves driving critical projects, mentoring junior engineers, and collaborating with cross-functional partners to optimize performance across Airbnb's platforms. Cand ...

Senior Software Engineer — Insurance Platform (Hybrid UK)

Frontline Ins UK is seeking a Senior Software Engineer in Belfast, Northern Ireland. This role involves designing, developing, and maintaining software systems for our insurance technology platforms. Ideal candidates should have over 5 years of experience in full-stack engineering with strong expertise in React, ...

Senior Software Engineer — AI, Cloud & DevOps

Sabio is seeking a Senior Software Engineer within the AI Practice to design and operate secure, scalable software solutions. This role emphasizes a DevOps mindset and involves direct interaction with customers to shape technical solutions. Candidates should have strong experience across technology stacks, speci ...

Cloud CV SDE: AI Powered Global Vision Services

Amazon is looking for a Software Development Engineer to join a dynamic team in Cambridge, England. This role involves designing and building secure, high-performance cloud services for Ring's consumer electronics products. Candidates should have a strong software development background, with proficiency in lang ...

Software Engineer Generative AI for Shopping UX

Amazon is seeking a talented Software Development Engineer to develop innovative features for the Rufus AI shopping assistant. The role demands a strong technical background, along with experience in programming languages like Java, C++, or C#. The team values customer obsession and innovation in delivering s ...

Principal Software Engineer, Margin Tech Hybrid & Impact

Citibank (Switzerland) AG is seeking a Principal Software Engineer to join its global technology team in Greater London. The role focuses on building robust technical solutions for complex business challenges, emphasizing distributed systems design and cloud services including AWS. Candidates should have strong ...

Backend Software Engineer Crypto Trading (Hybrid, London)

A leading technology firm is seeking a Software Engineer to develop backend systems for institutional crypto trading. The ideal candidate will have over 3 years of experience in software engineering, particularly with Go, Java, C++, C#, or Python. Responsibilities include maintaining services for trading and set ...

Senior Security Engineer: Secure, Scalable Apps

A leading global financial services firm is seeking a Software Engineer III to join their agile team in Bournemouth, England. The successful candidate will design and deliver trusted market-leading technology products. Responsibilities include developing secure production code, analyzing large data sets, and con ...

Staff Software Engineer Commercial Trading & Systems

Marks and Spencer is looking for a Software Engineer to join their dynamic team in Greater London. This role focuses on developing robust backend systems, leading technical projects, and mentoring junior engineers. Ideal candidates possess expertise in Java and cloud infrastructure, paired with a passion for qua ...

Remote SDET & Quality Automation Architect

Br Dge in Edinburgh is seeking a Senior Software Development Engineer in Test (SDET) to enhance engineering-led quality across the organization. This role enables high-quality software delivery by embedding within development teams and advocating for testability and observability. Successful candidates ...

Low Latency FX Java Developer Front Office Trading

A global consulting group in London is seeking a highly skilled eFX Java Developer. This role involves designing and maintaining low-latency Java applications for electronic FX trading systems, collaborating with front-office teams, and implementing algorithmic trading strategies. The ideal candidate has strong ...

Senior Java Architect: Cloud Native, DDD & Microservices Lead

A leading financial markets infrastructure provider in the UK seeks a Principal Java Architect. This mid-senior level role involves leading the design and governance of Java platforms, ensuring best practices, and enhancing the development ecosystem. The ideal candidate will have deep Java expertise and a strong ...

Senior Software Engineer (Fintech)

Are you a front-end leaning engineer who enjoys building polished, usable software, while still being comfortable contributing across the wider stack? This is an opportunity to join a fintech business building solutions for the financial markets, with a strong focus on user experience, product quali ...

Silicon Engineering: Quality Automation Engineer

A leading technology company in Cambridge is seeking a Quality Automation Engineer to enhance the reliability of software tools in their chip design process. The role requires experience in programming (Scala/Java) and CI/CD environments. You'll collaborate with teams to define validation strategies, maintain te ...

Senior Research Engineer — Quantitative Data & Backtests

A technology consulting firm in London is seeking a Research Engineer with strong software development skills. The role involves streamlining processes, managing market data, and enhancing research frameworks. Required qualifications include expertise in Python, Java, and SQL, alongside a relevant degree. This p ...

Lead Full Stack Engineer for Public Sector Transformation

A leading digital transformation consultancy in the UK seeks a Lead Full Stack Software Engineer to take ownership of complex public sector solutions. You will guide teams through architecture, design, and delivery. The ideal candidate has extensive experience with .NET, Java, or Python and excels in Agile envir ...

Senior Software Engineer Payroll (Python/Django/React)

Java Script Works is seeking a Senior Software Engineer for a contract role in London. The ideal candidate should demonstrate strong written and verbal communication skills and effectively collaborate across diverse functional teams. Experience with Python, Django, and React is a plus. This position offers compe ...

London Compute & Serverless Engineer (Rust/Go)

WorksHub is seeking a Software Engineer in London, United Kingdom, to work full-time on building and enhancing compute, storage, and data platforms. Proficiency in programming languages like C, Rust, Go, and Java is required. The role involves working with open source technologies, particularly Kubernetes. Candi ...

Senior Software Engineer AI Driven FinTech Platform

Clearwater Analytics is looking for a skilled software engineer to join their Alternative Assets Engineering team. This role requires at least 6 years of professional Java programming experience and a strong understanding of financial markets. The engineer will work on developing solutions related to fund analyt ...

DevOps Engineer

We are looking for a DevOps Engineer to help us build functional systems that improve customer experience. DevOps Engineer responsibilities include deploying product updates, identifying production issues and implementing integrations that meet customer needs. As a DevOps Engineer you need to ha ...

Low Latency FX Java Developer Front Office Trading

A global consulting group is seeking a highly skilled eFX Java Developer to join their team in London. This role focuses on designing and maintaining low-latency Java applications for eFX trading systems. The ideal candidate will have strong experience in front-office systems, connectivity, and algorithmic tradi ...

Java Swing Developer for High Performance Trading UI

A financial technology firm in Greater London is seeking a Java Swing Developer to enhance its high-performance desktop trading platform. This role includes maintaining a Java Swing-based UI and transitioning the architecture to microservices. The ideal candidate will have strong Core Java skills, experience wit ...

Senior Software Developer — Remote AI Driven SAP Automation

Avantra is seeking a Senior Software Developer to join their dedicated team. The role involves full-stack development primarily using Java, Kotlin, Python, and TypeScript. You'll work to enhance core code functionalities, focusing on generative AI capabilities and collaborating with international teams. Candidat ...

DevOps Engineer: Automation, CI/CD & Microservices

A global investment business is seeking a DevOps Engineer to join their team in Pudsey. This role involves the entire development lifecycle including requirement analysis, system design, and deployment. The ideal candidate will have experience in Agile methodologies, core Java, Spring, and automation testing fra ...

Back End Developer

Title: Senior Java Dev (Spring Boot) Rate: £700 per day (Inside IR35) Location: Fully remote (UK Only) Contract: 9 months We’re ...

VP Software Engineer, AI Driven Cloud Trading Platform

Goldman Sachs Group, Inc. is seeking a Vice President Software Engineer based in London to join its Global Banking & Markets division. This role involves designing and implementing a cloud-native platform for Equities Trading, driving strategic transformation through AI tools, and developing high-availability se ...

Senior/Principal Software Engineer Secure Cloud (SC/DV)

Gemba Advantage is seeking a Senior/Principal Software Engineer to design and deliver secure, scalable software solutions while working in small agile teams. The role requires active SC or DV clearance and entails championing modern engineering practices, shaping architectural direction, and influencing technica ...

VP Software Engineer, AI Driven Cloud Trading Platform

Goldman Sachs Group, Inc. is seeking a Vice President Software Engineer based in London to join its Global Banking & Markets division. This role involves designing and implementing a cloud-native platform for Equities Trading, driving strategic transformation through AI tools, and developing high-availability se ...

Senior/Principal Software Engineer Secure Cloud (SC/DV)

Gemba Advantage is seeking a Senior/Principal Software Engineer to design and deliver secure, scalable software solutions while working in small agile teams. The role requires active SC or DV clearance and entails championing modern engineering practices, shaping architectural direction, and influencing technica ...

Senior Software Engineer Transit Tech & Scalable Systems

A global leader in public transit solutions is looking for a Senior Software Engineer in Manchester to drive innovation in public transportation technology. The successful candidate will have at least 5 years of experience in software development, specializing in C++ and Java, along with cloud platform expertise ...

Cloud Engineer in Training – Hybrid Glasgow, 2 Year Program

A tech training and consulting company is seeking a Software Engineer for a hybrid role in Glasgow. This two-year fixed-term opportunity is designed for someone with 1-3 years of experience in software development and a willingness to learn in-demand technologies. Applicants should have knowledge in Java, J2EE, ...

Senior Automation QA Engineer Remote & Flexible

A leading technology solutions provider in Greater London is looking for a Software Engineer in Test. This exciting role involves both manual and automated testing to ensure delivery of high-quality software solutions. You will work collaboratively in an agile team, defining test strategies, and contributing to ...

Product Minded AI Software Engineer

INSHUR is seeking a Product-Minded Software Engineer III to enhance product delivery using AI tools. This hybrid role involves collaborating with a product team to develop and implement software solutions. Key responsibilities include using agentic coding tools to improve product iterations and writing code in G ...

Senior/Principal Software Engineer Secure Cloud (SC/DV)

Gemba Advantage is seeking a Senior/Principal Software Engineer to design and deliver secure, scalable software solutions while working in small agile teams. The role requires active SC or DV clearance and entails championing modern engineering practices, shaping architectural direction, and influencing technica ...

Security Cleared Senior Software Engineer (Hybrid)

Copello is seeking a Senior Software Engineer to join their hybrid team in Gloucestershire or Manchester. The successful candidate will design and build software for mission-critical systems in a highly collaborative Agile environment. This role offers an opportunity to work on impactful projects using modern te ...

Senior Software Engineer — AVP | Hybrid & Growth

Citibank (Switzerland) AG in Belfast is seeking a Senior Software Engineer to join their global technology team. In this role, you will build technical solutions to complex business challenges and collaborate closely with product teams. The ideal candidate will have extensive experience in software development, ...

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    Java Software Engineer Core Java Jobs in United Kingdom Job Search Guide, Trends and Insights